نتایج جستجو برای: orthomyxoviridae
تعداد نتایج: 8630 فیلتر نتایج به سال:
An automatic method, utilizing the AutoAnalyzer, for titration of influenza virus haemagglutination inhibitors is described. The titres obtained compare favourably with those obtained by densitometric methods. So far, the technique has not proved superior to the densitometric methods in either speed of operation or in reproducibility but various developments are suggested to effect this.
Monitoring of community influenza through sentinel practice networks is essential to track the onset and progress of epidemics. In 1999, the Influenza Pandemic Planning Committee of the Communicable Diseases Network Australia New Zealand (CDNANZ) recommended that a national surveillance system be established comprising both community-based and institutional surveillance. In 2001, however, influ...
BACKGROUND Seasonal influenza epidemics occur annually with bimodality in southern China and unimodality in northern China. Regional differences exist in surveillance data collected by the National Influenza Surveillance Network of the Chinese mainland. Qualitative and quantitative analyses on the spatiotemporal rules of the influenza virus's activities are needed to lay the foundation for the ...
Assessing the pandemic risk posed by specific non-human influenza A viruses is an important goal in public health research. As influenza virus genome sequencing becomes cheaper, faster, and more readily available, the ability to predict pandemic potential from sequence data could transform pandemic influenza risk assessment capabilities. However, the complexities of the relationships between vi...
In early 2009, new swine-origin influenza A (H1N1) virus emerged in Mexico and the United States. The emerging influenza virus had made global influenza pandemic for nearly one year. To every emerging pathogen, exploring the origin sources is vital for viral control and clearance. Influenza virus is different from other virus in that it has 8 segments, making the segment reassortment a main dri...
We report the complete genome sequence of influenza virus H9N2 associated with a fatal outbreak among chickens in Dubai. All segments are clustered with avian H9N2 viruses circulating in the Middle East but distinct from those in southeast Asia. It is not a reassortant virus or transmitted from other regions.
In April this year, a new influenza virus of swine origin emerged in Mexico and spread rapidly around the world. As the Northern hemisphere winter flu season kicks off, Laura Vargas-Parada reports on the measures that Mexico is taking to combat the H1N1 pandemic.
1) Chiba Prefectural Serum Institute, Chiba 2) Nagano Research Institute for Health and Pollution, Nagano 3) National Institute of Health, Tokyo 4) National Institute of Health, Nongtabri 5) Department of Microbiology and Immunology, Nippon Medical School, Tokyo 6) Department of Hygiene and Public Health, Nippon Medical School, Tokyo 7) Department of Family Medicine, Faculty of Medicine, Chiang...
In 1997, 18 people were infected in Hong Kong with an avian influenza A(H5N1) virus from chicken. This type of interspecies transmission was never detected before and could have resulted in the development of a pandemic strain. The occurrence suggests that the pig is not needed for the emergence of pandemic influenza virus strains. Characteristics of the strains involved are discussed in relati...
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